./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor905619305
<...>
[ 81.986102][ T46] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.10.4' (ED25519) to the list of known hosts.
execve("./syz-executor905619305", ["./syz-executor905619305"], 0x7fffab809d40 /* 10 vars */) = 0
brk(NULL) = 0x555581d88000
brk(0x555581d88d00) = 0x555581d88d00
arch_prctl(ARCH_SET_FS, 0x555581d88380) = 0
set_tid_address(0x555581d88650) = 5820
set_robust_list(0x555581d88660, 24) = 0
rseq(0x555581d88ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor905619305", 4096) = 27
getrandom("\x39\x3a\x23\x0a\xc9\xf9\xd1\xbc", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555581d88d00
brk(0x555581da9d00) = 0x555581da9d00
brk(0x555581daa000) = 0x555581daa000
mprotect(0x7f05da711000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
mkdir("./syzkaller.RlP4Nj", 0700) = 0
chmod("./syzkaller.RlP4Nj", 0777) = 0
chdir("./syzkaller.RlP4Nj") = 0
mkdir("./0", 0777) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555581d88650) = 5821
./strace-static-x86_64: Process 5821 attached
[pid 5821] set_robust_list(0x555581d88660, 24) = 0
[pid 5821] chdir("./0") = 0
[pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5821] setpgid(0, 0) = 0
[pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5821] write(3, "1000", 4) = 4
[pid 5821] close(3) = 0
[pid 5821] symlink("/dev/binderfs", "./binderfs") = 0
[pid 5821] write(1, "executing program\n", 18executing program
) = 18
[pid 5821] memfd_create("syzkaller", 0) = 3
[pid 5821] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f05d2200000
[pid 5821] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 32768) = 32768
[pid 5821] munmap(0x7f05d2200000, 138412032) = 0
[pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5821] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5821] close(3) = 0
[pid 5821] close(4) = 0
[pid 5821] mkdir("./bus", 0777) = 0
[pid 5821] mount("/dev/loop0", "./bus", "minix", MS_REC, "") = 0
[pid 5821] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3
[pid 5821] chdir("./bus") = 0
[pid 5821] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[ 85.604578][ T5821] loop0: detected capacity change from 0 to 64
[pid 5821] truncate("./file2", 524288) = 0
[pid 5821] unlink("./file1") = 0
[pid 5821] creat("./bus", 000) = -1 ENOSPC (No space left on device)
[pid 5821] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5821] mkdirat(AT_FDCWD, "./file1", 000) = 0
[ 85.661668][ T5821] Trying to free block not in datazone
[ 85.674201][ T5821] Trying to free block not in datazone
[ 85.680371][ T5821] minix_free_inode: bit 5 already cleared
[pid 5821] mkdir("./bus", 000) = 0
[ 85.730903][ T5821] overlayfs: upper fs needs to support d_type.
[ 85.742427][ T5821] overlayfs: upper fs does not support RENAME_WHITEOUT.
[ 85.750945][ T5821] overlayfs: failed to set xattr on upper
[ 85.758087][ T5821] overlayfs: ...falling back to redirect_dir=nofollow.
[ 85.767190][ T5821] overlayfs: ...falling back to index=off.
[pid 5821] mount(NULL, "./bus", "overlay", 0, "upperdir=./file1,lowerdir=./file0,workdir=./bus,") = 0
[pid 5821] chdir("./bus") = 0
[ 85.774103][ T5821] overlayfs: ...falling back to uuid=null.
[pid 5821] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_NONBLOCK|O_SYNC|O_DIRECT|O_NOATIME|O_CLOEXEC, 000) = 4
[pid 5821] exit_group(0) = ?
[pid 5821] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5821, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 85.806136][ T29] audit: type=1800 audit(1736774393.444:2): pid=5821 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor905" name="bus" dev="overlay" ino=4 res=0 errno=0
umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0
getdents64(3, 0x555581d896f0 /* 4 entries */, 32768) = 104
umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("./0/binderfs") = 0
umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0755, st_size=512, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy)
openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4
newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=512, ...}, AT_EMPTY_PATH) = 0
getdents64(4, 0x555581d91730 /* 8 entries */, 32768) = 232
umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/bus/file0", {st_mode=S_IFDIR|0755, st_size=256, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/bus/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5
newfstatat(5, "", {st_mode=S_IFDIR|0755, st_size=256, ...}, AT_EMPTY_PATH) = 0
getdents64(5, 0x555581d99770 /* 4 entries */, 32768) = 104
umount2("./0/bus/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "./0/bus/file0/file0", {st_mode=S_IFDIR|000, st_size=192, ...}, AT_SYMLINK_NOFOLLOW) = 0
umount2("./0/bus/file0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
openat(AT_FDCWD, "./0/bus/file0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 6
newfstatat(6, "", {st_mode=S_IFDIR|000, st_size=192, ...}, AT_EMPTY_PATH) = 0
getdents64(6, 0x555581da17b0 /* 2 entries */, 32768) = 48
getdents64(6, 0x555581da17b0 /* 0 entries */, 32768) = 0
close(6) = 0
rmdir("./0/bus/file0/file0") = 0
umount2("\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument)
newfstatat(AT_FDCWD, "\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
unlink("\x2e\x2f\x30\x2f\x62\x75\x73\x2f\x66\x69\x6c\x65\x30\x2f\x66\x69\x96") = 0
getdents64(5, 0x555581d99770 /* 0 entries */, 32768) = 0
close(5) = 0
[ 85.997585][ T5820] ------------[ cut here ]------------
[ 86.004061][ T5820] WARNING: CPU: 0 PID: 5820 at fs/inode.c:407 drop_nlink+0xc4/0x110
[ 86.012234][ T5820] Modules linked in:
[ 86.016399][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor905 Not tainted 6.13.0-rc7-syzkaller #0
[ 86.025907][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 86.036082][ T5820] RIP: 0010:drop_nlink+0xc4/0x110
[ 86.041311][ T5820] Code: bb 70 07 00 00 be 08 00 00 00 e8 97 37 e7 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 3d 5c 83 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 86.061387][ T5820] RSP: 0018:ffffc900040afd30 EFLAGS: 00010293
[ 86.068011][ T5820] RAX: ffffffff821c15a3 RBX: 1ffff1100ed9f2b5 RCX: ffff8880340a9e00
[ 86.076129][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 86.084260][ T5820] RBP: 0000000000000000 R08: ffffffff821c1523 R09: 1ffffffff2030b1e
[ 86.092397][ T5820] R10: dffffc0000000000 R11: fffffbfff2030b1f R12: ffff888076cf95a8
[ 86.100588][ T5820] R13: ffff888011eb0758 R14: ffff888076cf9560 R15: dffffc0000000000
[ 86.109078][ T5820] FS: 0000555581d88380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
[ 86.118146][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 86.124848][ T5820] CR2: 0000555581da97b8 CR3: 0000000033974000 CR4: 00000000003526f0
[ 86.132855][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 86.141487][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 86.150492][ T5820] Call Trace:
[ 86.153838][ T5820]
[ 86.156990][ T5820] ? __warn+0x165/0x4d0
[ 86.161357][ T5820] ? drop_nlink+0xc4/0x110
[ 86.166213][ T5820] ? report_bug+0x2b3/0x500
[ 86.171014][ T5820] ? drop_nlink+0xc4/0x110
[ 86.176197][ T5820] ? handle_bug+0x60/0x90
[ 86.181718][ T5820] ? exc_invalid_op+0x1a/0x50
[ 86.187249][ T5820] ? asm_exc_invalid_op+0x1a/0x20
[ 86.193630][ T5820] ? drop_nlink+0x43/0x110
[ 86.198329][ T5820] ? drop_nlink+0xc3/0x110
[ 86.202773][ T5820] ? drop_nlink+0xc4/0x110
[ 86.207311][ T5820] minix_rmdir+0xa5/0xc0
[ 86.211625][ T5820] vfs_rmdir+0x3a3/0x510
[ 86.215994][ T5820] do_rmdir+0x3b5/0x580
[ 86.220183][ T5820] ? __virt_addr_valid+0x183/0x530
[ 86.225623][ T5820] ? __pfx_do_rmdir+0x10/0x10
[ 86.230568][ T5820] ? getname_flags+0x1e3/0x540
[ 86.235608][ T5820] __x64_sys_rmdir+0x47/0x50
[ 86.240279][ T5820] do_syscall_64+0xf3/0x230
[ 86.244842][ T5820] ? clear_bhb_loop+0x35/0x90
[ 86.249550][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 86.255570][ T5820] RIP: 0033:0x7f05da69cd47
[ 86.260053][ T5820] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 86.279741][ T5820] RSP: 002b:00007ffc57a4fbf8 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 86.288224][ T5820] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05da69cd47
[ 86.296258][ T5820] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffc57a50da0
[ 86.304448][ T5820] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 86.312534][ T5820] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffc57a50da0
[ 86.321081][ T5820] R13: 0000555581d99740 R14: 431bde82d7b634db R15: 00007ffc57a52f20
[ 86.329535][ T5820]
[ 86.332608][ T5820] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 86.340035][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor905 Not tainted 6.13.0-rc7-syzkaller #0
[ 86.349621][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 86.359745][ T5820] Call Trace:
[ 86.363207][ T5820]
[ 86.366356][ T5820] dump_stack_lvl+0x241/0x360
[ 86.371093][ T5820] ? __pfx_dump_stack_lvl+0x10/0x10
[ 86.376305][ T5820] ? __pfx__printk+0x10/0x10
[ 86.381084][ T5820] ? vscnprintf+0x5d/0x90
[ 86.385505][ T5820] panic+0x349/0x880
[ 86.389405][ T5820] ? __warn+0x174/0x4d0
[ 86.393558][ T5820] ? __pfx_panic+0x10/0x10
[ 86.398027][ T5820] __warn+0x344/0x4d0
[ 86.402044][ T5820] ? drop_nlink+0xc4/0x110
[ 86.406596][ T5820] report_bug+0x2b3/0x500
[ 86.411684][ T5820] ? drop_nlink+0xc4/0x110
[ 86.416130][ T5820] handle_bug+0x60/0x90
[ 86.420297][ T5820] exc_invalid_op+0x1a/0x50
[ 86.424842][ T5820] asm_exc_invalid_op+0x1a/0x20
[ 86.429917][ T5820] RIP: 0010:drop_nlink+0xc4/0x110
[ 86.435145][ T5820] Code: bb 70 07 00 00 be 08 00 00 00 e8 97 37 e7 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 3d 5c 83 ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
[ 86.456171][ T5820] RSP: 0018:ffffc900040afd30 EFLAGS: 00010293
[ 86.462406][ T5820] RAX: ffffffff821c15a3 RBX: 1ffff1100ed9f2b5 RCX: ffff8880340a9e00
[ 86.470879][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 86.479849][ T5820] RBP: 0000000000000000 R08: ffffffff821c1523 R09: 1ffffffff2030b1e
[ 86.489329][ T5820] R10: dffffc0000000000 R11: fffffbfff2030b1f R12: ffff888076cf95a8
[ 86.497502][ T5820] R13: ffff888011eb0758 R14: ffff888076cf9560 R15: dffffc0000000000
[ 86.506495][ T5820] ? drop_nlink+0x43/0x110
[ 86.511034][ T5820] ? drop_nlink+0xc3/0x110
[ 86.515579][ T5820] minix_rmdir+0xa5/0xc0
[ 86.520092][ T5820] vfs_rmdir+0x3a3/0x510
[ 86.524378][ T5820] do_rmdir+0x3b5/0x580
[ 86.528569][ T5820] ? __virt_addr_valid+0x183/0x530
[ 86.533702][ T5820] ? __pfx_do_rmdir+0x10/0x10
[ 86.538416][ T5820] ? getname_flags+0x1e3/0x540
[ 86.543482][ T5820] __x64_sys_rmdir+0x47/0x50
[ 86.548093][ T5820] do_syscall_64+0xf3/0x230
[ 86.552599][ T5820] ? clear_bhb_loop+0x35/0x90
[ 86.557303][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 86.563223][ T5820] RIP: 0033:0x7f05da69cd47
[ 86.567647][ T5820] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 86.587446][ T5820] RSP: 002b:00007ffc57a4fbf8 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
[ 86.596142][ T5820] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05da69cd47
[ 86.604138][ T5820] RDX: 0000000000008890 RSI: 0000000000000000 RDI: 00007ffc57a50da0
[ 86.612317][ T5820] RBP: 0000000000000065 R08: 0000000000000000 R09: 0000000000000000
[ 86.621139][ T5820] R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffc57a50da0
[ 86.630044][ T5820] R13: 0000555581d99740 R14: 431bde82d7b634db R15: 00007ffc57a52f20
[ 86.639544][ T5820]
[ 86.643132][ T5820] Kernel Offset: disabled
[ 86.648221][ T5820] Rebooting in 86400 seconds..